328547501 has 2 divisors, whose sum is σ = 328547502. Its totient is φ = 328547500.

The previous prime is 328547447. The next prime is 328547503. The reversal of 328547501 is 105745823.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270635401 + 57912100 = 16451^2 + 7610^2 .

It is a cyclic number.

It is not a de Polignac number, because 328547501 - 2²⁶ = 261438637 is a prime.

Together with 328547503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328547503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164273750 + 164273751.

It is an arithmetic number, because the mean of its divisors is an integer number (164273751).

Almost surely, 2^328547501 is an apocalyptic number.

It is an amenable number.

328547501 is a deficient number, since it is larger than the sum of its proper divisors (1).

328547501 is an equidigital number, since it uses as much as digits as its factorization.

328547501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 328547501 is about 18125.8793166014. The cubic root of 328547501 is about 690.0269547686.

The spelling of 328547501 in words is "three hundred twenty-eight million, five hundred forty-seven thousand, five hundred one".